SlideShare a Scribd company logo

Solid and Infrastructure as Code

Download as ODP, PDF
Bram Vogelaar, profile picture
Bram Vogelaar

This document discusses applying SOLID principles to infrastructure as code. It provides an overview of roles and profiles in infrastructure as code and how they relate to design patterns like Model View Controller (MVC). It also explains the five SOLID principles - single responsibility, open/closed, Liskov substitution, interface segregation and dependency inversion - and provides examples of applying them to infrastructure code through techniques like defining types, relationships between defined types and profiles, and creating abstract/generic defined types.

Technology
1 of 42
Download to read offline
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Applying SOLID Principles to Infrastructure as Code @attachmentgenie
~$ whoami~$ whoami ● I used to be a Molecular Biologist,I used to be a Molecular Biologist, ● Then became a Dev,Then became a Dev, ● Now an Ops.Now an Ops. ● Open Source Consultant @Open Source Consultant @inuits.euinuits.eu
classclass webserver {webserver { include apacheinclude apache apache::vhost {apache::vhost { 'vhost.example.com''vhost.example.com':: port =>port => '80''80',, docroot =>docroot => '/var/www/vhost''/var/www/vhost',, }} include ::phpinclude ::php classclass {{ '::mysql::server''::mysql::server':: root_password =>root_password => 'secret''secret',, }} classclass {{ '::mysql::server::account_security''::mysql::server::account_security': }: } classclass {{ '::mysql::client''::mysql::client': }: } mysql::db {mysql::db { 'mydb''mydb':: user =>user => 'myuser''myuser',, password =>password => 'mypass''mypass',, host =>host => 'localhost''localhost',, grant => [grant => ['SELECT''SELECT',, 'UPDATE''UPDATE']],, }} include ::firewallinclude ::firewall firewall{firewall{'http''http':: dport =>dport => '80''80',, proto =>proto => 'tcp''tcp',, action =>action => 'accept''accept',, }}
Roles & ProfilesRoles & Profiles ● Component modules — Modules that manageComponent modules — Modules that manage one particular technology, for exampleone particular technology, for example puppetlabs/apache.puppetlabs/apache. ● Profiles — Wrapper classes that use (multiple)Profiles — Wrapper classes that use (multiple) component modules to configure a layeredcomponent modules to configure a layered technology stack.technology stack. ● Roles — Wrapper classes that use multipleRoles — Wrapper classes that use multiple profiles to build a complete systemprofiles to build a complete system configuration.configuration. https://www.craigdunn.org/2012/05/239/https://www.craigdunn.org/2012/05/239/
Roles & Profiles - TLDRRoles & Profiles - TLDR ● Component modules — Resources definitions.Component modules — Resources definitions. ● Profiles — Your company specificProfiles — Your company specific implementation.implementation. ● Roles — Bussiness role.Roles — Bussiness role.
Roles & ProfilesRoles & Profiles classclass roles::webserver {roles::webserver { include profiles::apacheinclude profiles::apache include profiles::mysqlinclude profiles::mysql }}
Roles & ProfilesRoles & Profiles classclass roles::webserver {roles::webserver { include ::profiles::apacheinclude ::profiles::apache }} classclass roles::database {roles::database { include ::profiles::mysqlinclude ::profiles::mysql }}
Roles & ProfilesRoles & Profiles ● First approach: Granular rolesFirst approach: Granular roles ● Second approach: Conditional logicSecond approach: Conditional logic ● Third approach: Nested rolesThird approach: Nested roles ● Fourth approach: Multiple roles per nodeFourth approach: Multiple roles per node ● Fifth approach: Super profilesFifth approach: Super profiles ● Sixth approach: Building roles in the nodeSixth approach: Building roles in the node classifierclassifier https://puppet.com/docs/pe/2017.3/managinghttps://puppet.com/docs/pe/2017.3/managing _nodes/designing_convenient_roles.html_nodes/designing_convenient_roles.html
““loose coupling, high cohesion”loose coupling, high cohesion” Unknown?Unknown?
Roles & ProfilesRoles & Profiles classclass roles::allinone {roles::allinone { include ::profiles::apacheinclude ::profiles::apache include ::profiles::mysqlinclude ::profiles::mysql }}
Design PatternsDesign Patterns
Model View ControllerModel View Controller ● The model is the central component of theThe model is the central component of the pattern. It expresses the application's behaviorpattern. It expresses the application's behavior in terms of the problem domain, independent ofin terms of the problem domain, independent of the user interface.[6] It directly manages thethe user interface.[6] It directly manages the data, logic and rules of the application.data, logic and rules of the application. ● The controller, accepts input and converts it toThe controller, accepts input and converts it to commands for the model or view.commands for the model or view. ● A view can be any output representation ofA view can be any output representation of information, such as a chart or a diagram.information, such as a chart or a diagram. Multiple views of the same information areMultiple views of the same information are possible, such as a bar chart for managementpossible, such as a bar chart for management and a tabular view for accountants.and a tabular view for accountants.
MVC -TLDRMVC -TLDR ● Model: heavy lifting partModel: heavy lifting part ● Controller: Logic flow coordinatorController: Logic flow coordinator ● View: Consumable render of dataView: Consumable render of data
R&P vs MVCR&P vs MVC ● Component modules — Resources definitions.Component modules — Resources definitions. ● Profiles — Your company specificProfiles — Your company specific implementation.implementation. ● Roles — Bussiness role.Roles — Bussiness role. ● Model: heavy lifting partModel: heavy lifting part ● Controller: Flow coordinatorController: Flow coordinator ● View: Consumable render of dataView: Consumable render of data
OO - Objective OrientedOO - Objective Oriented ● Objects and classesObjects and classes ● Dynamic dispatch/message passingDynamic dispatch/message passing ● EncapsulationEncapsulation ● Composition, inheritance, and delegationComposition, inheritance, and delegation ● PolymorphismPolymorphism ● Open recursionOpen recursion
SOLID PrincipleSOLID Principle mnemonic acronym for five design principlesmnemonic acronym for five design principles intended to make software designs moreintended to make software designs more understandable, flexible and maintainableunderstandable, flexible and maintainable Robert C. Martin, 2002Robert C. Martin, 2002
SOLID PrincipleSOLID Principle SS — Single Responsibility Principle— Single Responsibility Principle OO— Open-Closed Principle— Open-Closed Principle LL — Liskov Substitution Principle— Liskov Substitution Principle II — Interface Segregation Principle— Interface Segregation Principle DD — Dependency Inversion Principle— Dependency Inversion Principle
Single Responsibility PrincipleSingle Responsibility Principle ““A class should have one, and only one,A class should have one, and only one, reason to change”reason to change”
classclass webserver {webserver { include apacheinclude apache apache::vhost {apache::vhost { 'vhost.example.com''vhost.example.com':: port =>port => '80''80',, docroot =>docroot => '/var/www/vhost''/var/www/vhost',, }} include ::phpinclude ::php classclass {{ '::mysql::server''::mysql::server':: root_password =>root_password => 'secret''secret',, }} classclass {{ '::mysql::server::account_security''::mysql::server::account_security': }: } classclass {{ '::mysql::client''::mysql::client': }: } mysql::db {mysql::db { 'mydb''mydb':: user =>user => 'myuser''myuser',, password =>password => 'mypass''mypass',, host =>host => 'localhost''localhost',, grant => [grant => ['SELECT''SELECT',, 'UPDATE''UPDATE']],, }} include ::firewallinclude ::firewall firewall{firewall{'http''http':: dport =>dport => '80''80',, proto =>proto => 'tcp''tcp',, action =>action => 'accept''accept',, }}
Roles & ProfilesRoles & Profiles classclass roles::webserver {roles::webserver { include profiles::apacheinclude profiles::apache include profiles::mysqlinclude profiles::mysql }}
Open-Closed PrincipleOpen-Closed Principle ““You should be able to extend a class’sYou should be able to extend a class’s behavior, without modifying it”behavior, without modifying it”
classclass profiles::website::apache (profiles::website::apache ( BooleanBoolean $default_mods$default_mods == truetrue,, BooleanBoolean $default_vhost$default_vhost == falsefalse,, HashHash $modules$modules = {}= {},, StringString $mpm_module$mpm_module == 'prefork''prefork',, BooleanBoolean $purge_configs$purge_configs == falsefalse,, BooleanBoolean $purge_vhost_dir$purge_vhost_dir == falsefalse,, HashHash $vhosts$vhosts = {}= {},, ) {) { classclass {{ '::apache''::apache':: default_mods =>default_mods => $default_mods$default_mods,, default_vhost =>default_vhost => $default_vhost$default_vhost,, mpm_module =>mpm_module => $mpm_module$mpm_module,, purge_configs =>purge_configs => $purge_configs$purge_configs,, purge_vhost_dir =>purge_vhost_dir => $purge_vhost_dir$purge_vhost_dir,, }} create_resources(create_resources('apache::mod''apache::mod',, $modules$modules)) create_resources(create_resources('apache::vhost''apache::vhost',, $vhosts$vhosts)) }}
YAML programmingYAML programming profiles::website::apache::vhosts:profiles::website::apache::vhosts: 'icinga.alerting.vagrant':'icinga.alerting.vagrant': port:port: 8080 docroot:docroot: '/usr/share/icingaweb2/public''/usr/share/icingaweb2/public' directories:directories: -- 'icingaweb':'icingaweb': path:path: '/usr/share/icingaweb2/public''/usr/share/icingaweb2/public' directoryindex:directoryindex: 'index.php''index.php' options:options: -- 'SymLinksIfOwnerMatch''SymLinksIfOwnerMatch' setenv:setenv: -- 'ICINGAWEB_CONFIGDIR "/etc/icingaweb2"''ICINGAWEB_CONFIGDIR "/etc/icingaweb2"' rewrites:rewrites: -- 'icingaweb':'icingaweb': comment:comment: 'Icingaweb2''Icingaweb2' rewrite_base:rewrite_base: '/icingaweb2''/icingaweb2' rewrite_cond:rewrite_cond: -- '%%{}{REQUEST_FILENAME} -s [OR]''%%{}{REQUEST_FILENAME} -s [OR]' -- '%%{}{REQUEST_FILENAME} -l [OR]''%%{}{REQUEST_FILENAME} -l [OR]' -- '%%{}{REQUEST_FILENAME} -d''%%{}{REQUEST_FILENAME} -d' rewrite_rule:rewrite_rule: -- '^.*$ - [NC,L]''^.*$ - [NC,L]' -- 'php':'php': comment:comment: 'PHP''PHP' rewrite_rule:rewrite_rule: -- '^.*$ index.php [NC,L]''^.*$ index.php [NC,L]' setenvif:setenvif: -- 'Authorization "(.*)" HTTP_AUTHORIZATION=$1''Authorization "(.*)" HTTP_AUTHORIZATION=$1' aliases:aliases: -- '/icingaweb2':'/icingaweb2': alias:alias: '/icingaweb2''/icingaweb2' path:path: '/usr/share/icingaweb2/public''/usr/share/icingaweb2/public' redirectmatch_regexp:redirectmatch_regexp: '^/$''^/$' redirectmatch_dest:redirectmatch_dest: '/icingaweb2''/icingaweb2' custom_fragment:custom_fragment: || <LocationMatch "^/icingaweb2/(.*.php)$"><LocationMatch "^/icingaweb2/(.*.php)$"> ProxyPassMatch "fcgi://127.0.0.1:9000/usr/share/icingaweb2/public/$1"ProxyPassMatch "fcgi://127.0.0.1:9000/usr/share/icingaweb2/public/$1" </LocationMatch></LocationMatch>
Circuit BreakerCircuit Breaker # cat default.pp# cat default.pp lookup(lookup('circuit_breaker_key''circuit_breaker_key', Boolean, Boolean)) Exec { path => [Exec { path => [ "/bin/""/bin/",, "/sbin/""/sbin/" ,, "/usr/bin/""/usr/bin/",, "/usr/sbin/""/usr/sbin/" ] }] } Package {Package { allow_virtual =>allow_virtual => truetrue,, }}
Circuit BreakerCircuit Breaker [root@php72 ~]# puppet agent -t[root@php72 ~]# puppet agent -t ...... Error: Could not retrieve catalog from remote server:Error: Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Function lookup()Error 500 on SERVER: Server Error: Function lookup() did not find a value for the name 'circuit_breaker'did not find a value for the name 'circuit_breaker' on node php72.website.vagranton node php72.website.vagrant Warning: Not using cache on failed catalogWarning: Not using cache on failed catalog Error: Could not retrieve catalog; skipping runError: Could not retrieve catalog; skipping run
Liskov Substitution PrincipleLiskov Substitution Principle ““Derived classes must be substitutableDerived classes must be substitutable for their base classes”for their base classes”
Using TypesUsing Types classclass nginx (nginx ( $temp_path = ‘/tmp’$temp_path = ‘/tmp’,, $confd_only$confd_only == falsefalse,, $daemon$daemon == undefundef,, $severity$severity == 'error''error',,
Using TypesUsing Types classclass nginx (nginx ( Stdlib::AbsolutepathStdlib::Absolutepath $temp_path = ‘/tmp’$temp_path = ‘/tmp’,, BooleanBoolean $confd_only$confd_only == falsefalse,, Optional[Enum[Optional[Enum['on''on',, 'off''off']]]] $daemon$daemon == undefundef,, Nginx::SeverityNginx::Severity $severity$severity == 'error''error',,
Using TypesUsing Types # cat modules/nginx/types/serverity.pp# cat modules/nginx/types/serverity.pp type Nginx::Severity = Enum[type Nginx::Severity = Enum[ 'debug''debug',, 'info''info',, 'notice''notice',, 'warn''warn',, 'error''error',, 'crit''crit',, 'alert''alert',, 'emerg' # lint:ignore:trailing_comma'emerg' # lint:ignore:trailing_comma ]]
Interface Segregation PrincipleInterface Segregation Principle ““Make fine-grained interfaces that areMake fine-grained interfaces that are client specific”client specific”
DRY – Dont Repeat YourselfDRY – Dont Repeat Yourself ““...”...”
DRYDRY modules grep -r "apache::vhost" . | wc -l❯ 75
RelationshipsRelationships
Profiles & Defined TypesProfiles & Defined Types create_resources(create_resources( 'apache::vhost''apache::vhost',, $vhosts$vhosts,, $vhost_defaults$vhost_defaults )) VSVS create_resources(create_resources( '::profile_symfony::vhost''::profile_symfony::vhost',, $instances$instances )) create_resources(create_resources( '::profile_drupal::vhost''::profile_drupal::vhost',, $instances$instances ))
Dependency Inversion PrincipleDependency Inversion Principle ““Depend on abstractions, not onDepend on abstractions, not on concretions”concretions”
Roles & ProfilesRoles & Profiles classclass roles::webserver {roles::webserver { include profiles::apacheinclude profiles::apache include profiles::mysqlinclude profiles::mysql include profiles::firewallinclude profiles::firewall }}
Roles & ProfilesRoles & Profiles classclass role::webserver {role::webserver { include profiles::apacheinclude profiles::apache include profiles::phpinclude profiles::php include profiles::mysqlinclude profiles::mysql include profiles::firewallinclude profiles::firewall }}
Defined TypesDefined Types definedefine profile_static_app::vhost(profile_static_app::vhost( StringString $public_name$public_name,, StringString $internal_name$internal_name,, StringString $package_name$package_name,, StringString $docroot$docroot == "/var/vhosts/"/var/vhosts/${name}${name}"",, BooleanBoolean $force_ssl$force_ssl == truetrue,, BooleanBoolean $letsencrypt$letsencrypt == truetrue,, BooleanBoolean $package_ensure$package_ensure == 'installed''installed',, Enum[Enum['apache''apache',,'haproxy''haproxy',, 'none''none']] $rproxy_type$rproxy_type == 'apache''apache',, StringString $rproxy_basicauth$rproxy_basicauth == 'ldap''ldap',, StringString $custom_fragment$custom_fragment == '''',, Array[String]Array[String] $internal_aliases$internal_aliases = []= [],, Array[String]Array[String] $public_aliases$public_aliases = []= [],, ) {) { ::profile_static_app::instance {::profile_static_app::instance {$public_name$public_name:: package_name =>package_name => $package_name$package_name,, ensure =>ensure => $package_ensure$package_ensure,, }} ::profile_apache::vhost{::profile_apache::vhost{ $public_name$public_name:: docroot =>docroot => $docroot$docroot,, internal_name =>internal_name => $internal_name$internal_name,, internal_aliases =>internal_aliases => $internal_aliases$internal_aliases,, public_name =>public_name => $public_name$public_name,, public_aliases =>public_aliases => $public_aliases$public_aliases,, force_ssl =>force_ssl => $force_ssl$force_ssl,, letsencrypt =>letsencrypt => $letsencrypt$letsencrypt,, rproxy_type =>rproxy_type => $rproxy_type$rproxy_type,, rproxy_basicauth =>rproxy_basicauth => $rproxy_basicauth$rproxy_basicauth,, custom_fragment =>custom_fragment => $custom_fragment$custom_fragment,, }} }}
php::fpm::pool {php::fpm::pool { $name$name:: access_log =>access_log => $acces_log$acces_log,, listen =>listen => $fpm_listen$fpm_listen,, pm =>pm => $process_manager$process_manager,, pm_status_path =>pm_status_path => "/"/${name}${name}_status"_status",, }} profile_base::logrotate::file {profile_base::logrotate::file { ""${name}${name}-pool"-pool":: location => [location => [$acces_log$acces_log]],, }} ifif $create_cachetool_config$create_cachetool_config {{ ::profile_php::cachetool::config {::profile_php::cachetool::config { $name$name:: fpm_listen =>fpm_listen => $fpm_listen$fpm_listen,, location =>location => $cachetool_config_dir$cachetool_config_dir,, }} }} ifif $enable_alerting$enable_alerting {{ notify {notify { 'no alerting to see here''no alerting to see here': }: } }} ifif $enable_ship_logs$enable_ship_logs {{ ::profile_base::rsyslog::file {::profile_base::rsyslog::file { ""${name}${name}-pool"-pool":: location =>location => $acces_log$acces_log,, }} }} ifif $enable_ship_metrics$enable_ship_metrics {{ notify {notify { 'no metrics to see here''no metrics to see here': }: } }}
ConclusionsConclusions VV Single Responsibility PrincipleSingle Responsibility Principle ½½ Open-Closed PrincipleOpen-Closed Principle ½½ Liskov Substitution PrincipleLiskov Substitution Principle ½½ Interface Segregation PrincipleInterface Segregation Principle ¾¾ Dependency Inversion PrincipleDependency Inversion Principle
More ReadingMore Reading
ContactContact Bram VogelaarBram Vogelaar +31 6 46 62 60 78+31 6 46 62 60 78 bram.vogelaar@inuits.eubram.vogelaar@inuits.eu @attachmentgenie@attachmentgenie Inuits BEInuits BE Essensteenweg 31Essensteenweg 31 2930 Brasschaat2930 Brasschaat BelgiumBelgium Inuits NLInuits NL Maashaven Zuidzijde 2Maashaven Zuidzijde 2 3081 AE Rotterdam3081 AE Rotterdam NetherlandsNetherlands

More Related Content

PDF
Migrating data to drupal 8
Ignacio Sánchez Holgueras
 
PDF
Migrating to Drupal 8: How to Migrate Your Content and Minimize the Risks
Acquia
 
ZIP
SHARE & the Semantic Web — This Time it's Personal
Luke McCarthy
 
PDF
WCLA12 JavaScript
Jeffrey Zinn
 
PDF
EWD 3 Training Course Part 38: Building a React.js application with QEWD, Part 2
Rob Tweed
 
PDF
EWD 3 Training Course Part 14: Using Ajax for QEWD Messages
Rob Tweed
 
PPT
PHP MVC
Reggie Niccolo Santos
 
PDF
EWD 3 Training Course Part 22: Traversing Documents using DocumentNode Objects
Rob Tweed
 
Migrating data to drupal 8
Ignacio Sánchez Holgueras
 
Migrating to Drupal 8: How to Migrate Your Content and Minimize the Risks
Acquia
 
SHARE & the Semantic Web — This Time it's Personal
Luke McCarthy
 
WCLA12 JavaScript
Jeffrey Zinn
 
EWD 3 Training Course Part 38: Building a React.js application with QEWD, Part 2
Rob Tweed
 
EWD 3 Training Course Part 14: Using Ajax for QEWD Messages
Rob Tweed
 
PHP MVC
Reggie Niccolo Santos
 
EWD 3 Training Course Part 22: Traversing Documents using DocumentNode Objects
Rob Tweed
 

What's hot (20)

PPT
JavaScript Basics with baby steps
Muhammad khurram khan
 
PPTX
PHP, The X DevAPI, and the MySQL Document Store Presented January 23rd, 20...
Dave Stokes
 
PDF
The Naked Bundle - Tryout
Matthias Noback
 
PDF
EWD 3 Training Course Part 20: The DocumentNode Object
Rob Tweed
 
PDF
WEB TECHNOLOGIES JavaScript
Jyothishmathi Institute of Technology and Science Karimnagar
 
PDF
Overview Of Lift Framework
Xebia IT Architects
 
PDF
Overview of The Scala Based Lift Web Framework
IndicThreads
 
PDF
Auto-loading of Drupal CCK Nodes
nihiliad
 
PDF
Introduction to Node.js Platform
Naresh Chintalcheru
 
PDF
JavaScript 101
ygv2000
 
PDF
자바 웹 개발 시작하기 (1주차 : 웹 어플리케이션 체험 실습)
DK Lee
 
PPSX
RequireJS
Tim Doherty
 
PDF
From framework coupled code to #microservices through #DDD /by @codelytv
CodelyTV
 
PPTX
Kubernetes #4 volume &amp; stateful set
Terry Cho
 
PDF
Serverless Java on Kubernetes
Krzysztof Sobkowiak
 
PDF
NoSQL and JavaScript: a love story
Alexandre Morgaut
 
PDF
Metarhia: Node.js Macht Frei
Timur Shemsedinov
 
PPT
Managing JavaScript Dependencies With RequireJS
Den Odell
 
PPTX
Php
samirlakhanistb
 
PPTX
OCCI Specification Walkthrough
befreax
 
JavaScript Basics with baby steps
Muhammad khurram khan
 
PHP, The X DevAPI, and the MySQL Document Store Presented January 23rd, 20...
Dave Stokes
 
The Naked Bundle - Tryout
Matthias Noback
 
EWD 3 Training Course Part 20: The DocumentNode Object
Rob Tweed
 
WEB TECHNOLOGIES JavaScript
Jyothishmathi Institute of Technology and Science Karimnagar
 
Overview Of Lift Framework
Xebia IT Architects
 
Overview of The Scala Based Lift Web Framework
IndicThreads
 
Auto-loading of Drupal CCK Nodes
nihiliad
 
Introduction to Node.js Platform
Naresh Chintalcheru
 
JavaScript 101
ygv2000
 
자바 웹 개발 시작하기 (1주차 : 웹 어플리케이션 체험 실습)
DK Lee
 
RequireJS
Tim Doherty
 
From framework coupled code to #microservices through #DDD /by @codelytv
CodelyTV
 
Kubernetes #4 volume &amp; stateful set
Terry Cho
 
Serverless Java on Kubernetes
Krzysztof Sobkowiak
 
NoSQL and JavaScript: a love story
Alexandre Morgaut
 
Metarhia: Node.js Macht Frei
Timur Shemsedinov
 
Managing JavaScript Dependencies With RequireJS
Den Odell
 
Php
samirlakhanistb
 
OCCI Specification Walkthrough
befreax
 
Ad

Similar to Solid and Infrastructure as Code (20)

PDF
Developing SOLID Code
Mark Niebergall
 
PPTX
Implementing The Open/Closed Principle
Sam Hennessy
 
ODP
SOLID design
Yoan-Alexander Grigorov
 
PDF
Some OOP paradigms & SOLID
Julio Martinez
 
PDF
Architecture logicielle #3 : object oriented design
Jean Michel
 
ODP
Introduction to Domain-Driven Design
Yoan-Alexander Grigorov
 
PDF
IRJET- Lightweight MVC Framework in PHP
IRJET Journal
 
PDF
Workshop: Refactoring Legacy PHP: The Complete Guide
Junade Ali
 
PDF
Beyond MVC: from Model to Domain
Jeremy Cook
 
PDF
S.O.L.I.D. Principles
Jad Salhani
 
PPTX
Oops in php
Gourishankar R Pujar
 
PDF
Fighting legacy with hexagonal architecture and frameworkless php
Fabio Pellegrini
 
PDF
Be pragmatic, be SOLID (at Boiling Frogs, Wrocław)
Krzysztof Menżyk
 
PDF
Object Oriented Programming for WordPress Plugin Development
mtoppa
 
PPT
PHP - Procedural To Object-Oriented
Vance Lucas
 
PDF
OOP in PHP
Alena Holligan
 
PPTX
Programming in the large
Naveenkumar Muguda
 
PPT
Ood and solid principles
Avinash Kadam
 
PDF
Object Oriented Design Principles
Thang Tran Duc
 
PDF
Be pragmatic, be SOLID
Krzysztof Menżyk
 
Developing SOLID Code
Mark Niebergall
 
Implementing The Open/Closed Principle
Sam Hennessy
 
SOLID design
Yoan-Alexander Grigorov
 
Some OOP paradigms & SOLID
Julio Martinez
 
Architecture logicielle #3 : object oriented design
Jean Michel
 
Introduction to Domain-Driven Design
Yoan-Alexander Grigorov
 
IRJET- Lightweight MVC Framework in PHP
IRJET Journal
 
Workshop: Refactoring Legacy PHP: The Complete Guide
Junade Ali
 
Beyond MVC: from Model to Domain
Jeremy Cook
 
S.O.L.I.D. Principles
Jad Salhani
 
Oops in php
Gourishankar R Pujar
 
Fighting legacy with hexagonal architecture and frameworkless php
Fabio Pellegrini
 
Be pragmatic, be SOLID (at Boiling Frogs, Wrocław)
Krzysztof Menżyk
 
Object Oriented Programming for WordPress Plugin Development
mtoppa
 
PHP - Procedural To Object-Oriented
Vance Lucas
 
OOP in PHP
Alena Holligan
 
Programming in the large
Naveenkumar Muguda
 
Ood and solid principles
Avinash Kadam
 
Object Oriented Design Principles
Thang Tran Duc
 
Be pragmatic, be SOLID
Krzysztof Menżyk
 
Ad

More from Bram Vogelaar (20)

PPTX
Terraforming your Platform Engineering organisation.pptx
Bram Vogelaar
 
PDF
Secure second days operations with Boundary and Vault.pdf
Bram Vogelaar
 
PDF
Cost reconciliation in a post CMDB world
Bram Vogelaar
 
PDF
Self scaling Multi cloud nomad workloads
Bram Vogelaar
 
PDF
Scraping metrics for fun and profit
Bram Vogelaar
 
PDF
10 things i learned building nomad-packs
Bram Vogelaar
 
PDF
10 things I learned building Nomad packs
Bram Vogelaar
 
PDF
Easy Cloud Native Transformation with Nomad
Bram Vogelaar
 
PDF
Uncomplicated Nomad
Bram Vogelaar
 
PDF
Observability; a gentle introduction
Bram Vogelaar
 
PDF
Running Trusted Payload with Nomad and Waypoint
Bram Vogelaar
 
PDF
Easy Cloud Native Transformation using HashiCorp Nomad
Bram Vogelaar
 
PDF
Securing Prometheus exporters using HashiCorp Vault
Bram Vogelaar
 
PDF
CICD using jenkins and Nomad
Bram Vogelaar
 
PDF
Bootstrapping multidc observability stack
Bram Vogelaar
 
PDF
Running trusted payloads with Nomad and Waypoint
Bram Vogelaar
 
PDF
Gamification of Chaos Testing
Bram Vogelaar
 
PDF
Puppet and the HashiStack
Bram Vogelaar
 
PDF
Bootstrapping multidc observability stack
Bram Vogelaar
 
PPTX
Creating Reusable Puppet Profiles
Bram Vogelaar
 
Terraforming your Platform Engineering organisation.pptx
Bram Vogelaar
 
Secure second days operations with Boundary and Vault.pdf
Bram Vogelaar
 
Cost reconciliation in a post CMDB world
Bram Vogelaar
 
Self scaling Multi cloud nomad workloads
Bram Vogelaar
 
Scraping metrics for fun and profit
Bram Vogelaar
 
10 things i learned building nomad-packs
Bram Vogelaar
 
10 things I learned building Nomad packs
Bram Vogelaar
 
Easy Cloud Native Transformation with Nomad
Bram Vogelaar
 
Uncomplicated Nomad
Bram Vogelaar
 
Observability; a gentle introduction
Bram Vogelaar
 
Running Trusted Payload with Nomad and Waypoint
Bram Vogelaar
 
Easy Cloud Native Transformation using HashiCorp Nomad
Bram Vogelaar
 
Securing Prometheus exporters using HashiCorp Vault
Bram Vogelaar
 
CICD using jenkins and Nomad
Bram Vogelaar
 
Bootstrapping multidc observability stack
Bram Vogelaar
 
Running trusted payloads with Nomad and Waypoint
Bram Vogelaar
 
Gamification of Chaos Testing
Bram Vogelaar
 
Puppet and the HashiStack
Bram Vogelaar
 
Bootstrapping multidc observability stack
Bram Vogelaar
 
Creating Reusable Puppet Profiles
Bram Vogelaar
 

Recently uploaded (20)

PPTX
VMware vSphere Foundation How to Sell Presentation-Ver1.4-2-14-2024.pptx
blackmambaettijean
 
PDF
The Rise and Fall of 3GPP – Time for a Sabbatical?
3G4G
 
PDF
Diabetes mellitus diagnosis method based random forest with bat algorithm
IAESIJAI
 
PDF
Build a system with the filesystem maintained by OSTree @ COSCUP 2025
Jian-Hong Pan
 
PDF
Machine learning based COVID-19 study performance prediction
IAESIJAI
 
PPTX
Big Data Technologies - Introduction.pptx
kuthubussaman1
 
PDF
Blue Purple Modern Animated Computer Science Presentation.pdf.pdf
Akar16
 
PDF
Approach and Philosophy of On baking technology
30anthuong17
 
PPTX
20250228 LYD VKU AI Blended-Learning.pptx
DatVoNgoc
 
PDF
How UI/UX Design Impacts User Retention in Mobile Apps.pdf
SynapseIndia
 
PDF
Mobile App Security Testing_ A Comprehensive Guide.pdf
flufftailshop
 
PDF
Advanced methodologies resolving dimensionality complications for autism neur...
IAESIJAI
 
PDF
Shreyas Phanse Resume: Experienced Backend Engineer | Java • Spring Boot • Ka...
SHREYAS PHANSE
 
PDF
Review of recent advances in non-invasive hemoglobin estimation
IAESIJAI
 
PPT
“AI and Expert System Decision Support & Business Intelligence Systems”
ZubinRadhakrishnan
 
DOCX
The AUB Centre for AI in Media Proposal.docx
GAONE9
 
PDF
Encapsulation theory and applications.pdf
gurumoop
 
PDF
Chapter 3 Spatial Domain Image Processing.pdf
Getnet Tigabie Askale -(GM)
 
PDF
Architecting across the Boundaries of two Complex Domains - Healthcare & Tech...
Peter Tan
 
PDF
Empathic Computing: Creating Shared Understanding
Mark Billinghurst
 
VMware vSphere Foundation How to Sell Presentation-Ver1.4-2-14-2024.pptx
blackmambaettijean
 
The Rise and Fall of 3GPP – Time for a Sabbatical?
3G4G
 
Diabetes mellitus diagnosis method based random forest with bat algorithm
IAESIJAI
 
Build a system with the filesystem maintained by OSTree @ COSCUP 2025
Jian-Hong Pan
 
Machine learning based COVID-19 study performance prediction
IAESIJAI
 
Big Data Technologies - Introduction.pptx
kuthubussaman1
 
Blue Purple Modern Animated Computer Science Presentation.pdf.pdf
Akar16
 
Approach and Philosophy of On baking technology
30anthuong17
 
20250228 LYD VKU AI Blended-Learning.pptx
DatVoNgoc
 
How UI/UX Design Impacts User Retention in Mobile Apps.pdf
SynapseIndia
 
Mobile App Security Testing_ A Comprehensive Guide.pdf
flufftailshop
 
Advanced methodologies resolving dimensionality complications for autism neur...
IAESIJAI
 
Shreyas Phanse Resume: Experienced Backend Engineer | Java • Spring Boot • Ka...
SHREYAS PHANSE
 
Review of recent advances in non-invasive hemoglobin estimation
IAESIJAI
 
“AI and Expert System Decision Support & Business Intelligence Systems”
ZubinRadhakrishnan
 
The AUB Centre for AI in Media Proposal.docx
GAONE9
 
Encapsulation theory and applications.pdf
gurumoop
 
Chapter 3 Spatial Domain Image Processing.pdf
Getnet Tigabie Askale -(GM)
 
Architecting across the Boundaries of two Complex Domains - Healthcare & Tech...
Peter Tan
 
Empathic Computing: Creating Shared Understanding
Mark Billinghurst
 

Solid and Infrastructure as Code

  • 2. ~$ whoami~$ whoami ● I used to be a Molecular Biologist,I used to be a Molecular Biologist, ● Then became a Dev,Then became a Dev, ● Now an Ops.Now an Ops. ● Open Source Consultant @Open Source Consultant @inuits.euinuits.eu
  • 3. classclass webserver {webserver { include apacheinclude apache apache::vhost {apache::vhost { 'vhost.example.com''vhost.example.com':: port =>port => '80''80',, docroot =>docroot => '/var/www/vhost''/var/www/vhost',, }} include ::phpinclude ::php classclass {{ '::mysql::server''::mysql::server':: root_password =>root_password => 'secret''secret',, }} classclass {{ '::mysql::server::account_security''::mysql::server::account_security': }: } classclass {{ '::mysql::client''::mysql::client': }: } mysql::db {mysql::db { 'mydb''mydb':: user =>user => 'myuser''myuser',, password =>password => 'mypass''mypass',, host =>host => 'localhost''localhost',, grant => [grant => ['SELECT''SELECT',, 'UPDATE''UPDATE']],, }} include ::firewallinclude ::firewall firewall{firewall{'http''http':: dport =>dport => '80''80',, proto =>proto => 'tcp''tcp',, action =>action => 'accept''accept',, }}
  • 4. Roles & ProfilesRoles & Profiles ● Component modules — Modules that manageComponent modules — Modules that manage one particular technology, for exampleone particular technology, for example puppetlabs/apache.puppetlabs/apache. ● Profiles — Wrapper classes that use (multiple)Profiles — Wrapper classes that use (multiple) component modules to configure a layeredcomponent modules to configure a layered technology stack.technology stack. ● Roles — Wrapper classes that use multipleRoles — Wrapper classes that use multiple profiles to build a complete systemprofiles to build a complete system configuration.configuration. https://www.craigdunn.org/2012/05/239/https://www.craigdunn.org/2012/05/239/
  • 5. Roles & Profiles - TLDRRoles & Profiles - TLDR ● Component modules — Resources definitions.Component modules — Resources definitions. ● Profiles — Your company specificProfiles — Your company specific implementation.implementation. ● Roles — Bussiness role.Roles — Bussiness role.
  • 6. Roles & ProfilesRoles & Profiles classclass roles::webserver {roles::webserver { include profiles::apacheinclude profiles::apache include profiles::mysqlinclude profiles::mysql }}
  • 7. Roles & ProfilesRoles & Profiles classclass roles::webserver {roles::webserver { include ::profiles::apacheinclude ::profiles::apache }} classclass roles::database {roles::database { include ::profiles::mysqlinclude ::profiles::mysql }}
  • 8. Roles & ProfilesRoles & Profiles ● First approach: Granular rolesFirst approach: Granular roles ● Second approach: Conditional logicSecond approach: Conditional logic ● Third approach: Nested rolesThird approach: Nested roles ● Fourth approach: Multiple roles per nodeFourth approach: Multiple roles per node ● Fifth approach: Super profilesFifth approach: Super profiles ● Sixth approach: Building roles in the nodeSixth approach: Building roles in the node classifierclassifier https://puppet.com/docs/pe/2017.3/managinghttps://puppet.com/docs/pe/2017.3/managing _nodes/designing_convenient_roles.html_nodes/designing_convenient_roles.html
  • 9. ““loose coupling, high cohesion”loose coupling, high cohesion” Unknown?Unknown?
  • 10. Roles & ProfilesRoles & Profiles classclass roles::allinone {roles::allinone { include ::profiles::apacheinclude ::profiles::apache include ::profiles::mysqlinclude ::profiles::mysql }}
  • 12. Model View ControllerModel View Controller ● The model is the central component of theThe model is the central component of the pattern. It expresses the application's behaviorpattern. It expresses the application's behavior in terms of the problem domain, independent ofin terms of the problem domain, independent of the user interface.[6] It directly manages thethe user interface.[6] It directly manages the data, logic and rules of the application.data, logic and rules of the application. ● The controller, accepts input and converts it toThe controller, accepts input and converts it to commands for the model or view.commands for the model or view. ● A view can be any output representation ofA view can be any output representation of information, such as a chart or a diagram.information, such as a chart or a diagram. Multiple views of the same information areMultiple views of the same information are possible, such as a bar chart for managementpossible, such as a bar chart for management and a tabular view for accountants.and a tabular view for accountants.
  • 13. MVC -TLDRMVC -TLDR ● Model: heavy lifting partModel: heavy lifting part ● Controller: Logic flow coordinatorController: Logic flow coordinator ● View: Consumable render of dataView: Consumable render of data
  • 14. R&P vs MVCR&P vs MVC ● Component modules — Resources definitions.Component modules — Resources definitions. ● Profiles — Your company specificProfiles — Your company specific implementation.implementation. ● Roles — Bussiness role.Roles — Bussiness role. ● Model: heavy lifting partModel: heavy lifting part ● Controller: Flow coordinatorController: Flow coordinator ● View: Consumable render of dataView: Consumable render of data
  • 15. OO - Objective OrientedOO - Objective Oriented ● Objects and classesObjects and classes ● Dynamic dispatch/message passingDynamic dispatch/message passing ● EncapsulationEncapsulation ● Composition, inheritance, and delegationComposition, inheritance, and delegation ● PolymorphismPolymorphism ● Open recursionOpen recursion
  • 16. SOLID PrincipleSOLID Principle mnemonic acronym for five design principlesmnemonic acronym for five design principles intended to make software designs moreintended to make software designs more understandable, flexible and maintainableunderstandable, flexible and maintainable Robert C. Martin, 2002Robert C. Martin, 2002
  • 17. SOLID PrincipleSOLID Principle SS — Single Responsibility Principle— Single Responsibility Principle OO— Open-Closed Principle— Open-Closed Principle LL — Liskov Substitution Principle— Liskov Substitution Principle II — Interface Segregation Principle— Interface Segregation Principle DD — Dependency Inversion Principle— Dependency Inversion Principle
  • 18. Single Responsibility PrincipleSingle Responsibility Principle ““A class should have one, and only one,A class should have one, and only one, reason to change”reason to change”
  • 19. classclass webserver {webserver { include apacheinclude apache apache::vhost {apache::vhost { 'vhost.example.com''vhost.example.com':: port =>port => '80''80',, docroot =>docroot => '/var/www/vhost''/var/www/vhost',, }} include ::phpinclude ::php classclass {{ '::mysql::server''::mysql::server':: root_password =>root_password => 'secret''secret',, }} classclass {{ '::mysql::server::account_security''::mysql::server::account_security': }: } classclass {{ '::mysql::client''::mysql::client': }: } mysql::db {mysql::db { 'mydb''mydb':: user =>user => 'myuser''myuser',, password =>password => 'mypass''mypass',, host =>host => 'localhost''localhost',, grant => [grant => ['SELECT''SELECT',, 'UPDATE''UPDATE']],, }} include ::firewallinclude ::firewall firewall{firewall{'http''http':: dport =>dport => '80''80',, proto =>proto => 'tcp''tcp',, action =>action => 'accept''accept',, }}
  • 20. Roles & ProfilesRoles & Profiles classclass roles::webserver {roles::webserver { include profiles::apacheinclude profiles::apache include profiles::mysqlinclude profiles::mysql }}
  • 21. Open-Closed PrincipleOpen-Closed Principle ““You should be able to extend a class’sYou should be able to extend a class’s behavior, without modifying it”behavior, without modifying it”
  • 22. classclass profiles::website::apache (profiles::website::apache ( BooleanBoolean $default_mods$default_mods == truetrue,, BooleanBoolean $default_vhost$default_vhost == falsefalse,, HashHash $modules$modules = {}= {},, StringString $mpm_module$mpm_module == 'prefork''prefork',, BooleanBoolean $purge_configs$purge_configs == falsefalse,, BooleanBoolean $purge_vhost_dir$purge_vhost_dir == falsefalse,, HashHash $vhosts$vhosts = {}= {},, ) {) { classclass {{ '::apache''::apache':: default_mods =>default_mods => $default_mods$default_mods,, default_vhost =>default_vhost => $default_vhost$default_vhost,, mpm_module =>mpm_module => $mpm_module$mpm_module,, purge_configs =>purge_configs => $purge_configs$purge_configs,, purge_vhost_dir =>purge_vhost_dir => $purge_vhost_dir$purge_vhost_dir,, }} create_resources(create_resources('apache::mod''apache::mod',, $modules$modules)) create_resources(create_resources('apache::vhost''apache::vhost',, $vhosts$vhosts)) }}
  • 23. YAML programmingYAML programming profiles::website::apache::vhosts:profiles::website::apache::vhosts: 'icinga.alerting.vagrant':'icinga.alerting.vagrant': port:port: 8080 docroot:docroot: '/usr/share/icingaweb2/public''/usr/share/icingaweb2/public' directories:directories: -- 'icingaweb':'icingaweb': path:path: '/usr/share/icingaweb2/public''/usr/share/icingaweb2/public' directoryindex:directoryindex: 'index.php''index.php' options:options: -- 'SymLinksIfOwnerMatch''SymLinksIfOwnerMatch' setenv:setenv: -- 'ICINGAWEB_CONFIGDIR "/etc/icingaweb2"''ICINGAWEB_CONFIGDIR "/etc/icingaweb2"' rewrites:rewrites: -- 'icingaweb':'icingaweb': comment:comment: 'Icingaweb2''Icingaweb2' rewrite_base:rewrite_base: '/icingaweb2''/icingaweb2' rewrite_cond:rewrite_cond: -- '%%{}{REQUEST_FILENAME} -s [OR]''%%{}{REQUEST_FILENAME} -s [OR]' -- '%%{}{REQUEST_FILENAME} -l [OR]''%%{}{REQUEST_FILENAME} -l [OR]' -- '%%{}{REQUEST_FILENAME} -d''%%{}{REQUEST_FILENAME} -d' rewrite_rule:rewrite_rule: -- '^.*$ - [NC,L]''^.*$ - [NC,L]' -- 'php':'php': comment:comment: 'PHP''PHP' rewrite_rule:rewrite_rule: -- '^.*$ index.php [NC,L]''^.*$ index.php [NC,L]' setenvif:setenvif: -- 'Authorization "(.*)" HTTP_AUTHORIZATION=$1''Authorization "(.*)" HTTP_AUTHORIZATION=$1' aliases:aliases: -- '/icingaweb2':'/icingaweb2': alias:alias: '/icingaweb2''/icingaweb2' path:path: '/usr/share/icingaweb2/public''/usr/share/icingaweb2/public' redirectmatch_regexp:redirectmatch_regexp: '^/$''^/$' redirectmatch_dest:redirectmatch_dest: '/icingaweb2''/icingaweb2' custom_fragment:custom_fragment: || <LocationMatch "^/icingaweb2/(.*.php)$"><LocationMatch "^/icingaweb2/(.*.php)$"> ProxyPassMatch "fcgi://127.0.0.1:9000/usr/share/icingaweb2/public/$1"ProxyPassMatch "fcgi://127.0.0.1:9000/usr/share/icingaweb2/public/$1" </LocationMatch></LocationMatch>
  • 24. Circuit BreakerCircuit Breaker # cat default.pp# cat default.pp lookup(lookup('circuit_breaker_key''circuit_breaker_key', Boolean, Boolean)) Exec { path => [Exec { path => [ "/bin/""/bin/",, "/sbin/""/sbin/" ,, "/usr/bin/""/usr/bin/",, "/usr/sbin/""/usr/sbin/" ] }] } Package {Package { allow_virtual =>allow_virtual => truetrue,, }}
  • 25. Circuit BreakerCircuit Breaker [root@php72 ~]# puppet agent -t[root@php72 ~]# puppet agent -t ...... Error: Could not retrieve catalog from remote server:Error: Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Function lookup()Error 500 on SERVER: Server Error: Function lookup() did not find a value for the name 'circuit_breaker'did not find a value for the name 'circuit_breaker' on node php72.website.vagranton node php72.website.vagrant Warning: Not using cache on failed catalogWarning: Not using cache on failed catalog Error: Could not retrieve catalog; skipping runError: Could not retrieve catalog; skipping run
  • 26. Liskov Substitution PrincipleLiskov Substitution Principle ““Derived classes must be substitutableDerived classes must be substitutable for their base classes”for their base classes”
  • 27. Using TypesUsing Types classclass nginx (nginx ( $temp_path = ‘/tmp’$temp_path = ‘/tmp’,, $confd_only$confd_only == falsefalse,, $daemon$daemon == undefundef,, $severity$severity == 'error''error',,
  • 28. Using TypesUsing Types classclass nginx (nginx ( Stdlib::AbsolutepathStdlib::Absolutepath $temp_path = ‘/tmp’$temp_path = ‘/tmp’,, BooleanBoolean $confd_only$confd_only == falsefalse,, Optional[Enum[Optional[Enum['on''on',, 'off''off']]]] $daemon$daemon == undefundef,, Nginx::SeverityNginx::Severity $severity$severity == 'error''error',,
  • 29. Using TypesUsing Types # cat modules/nginx/types/serverity.pp# cat modules/nginx/types/serverity.pp type Nginx::Severity = Enum[type Nginx::Severity = Enum[ 'debug''debug',, 'info''info',, 'notice''notice',, 'warn''warn',, 'error''error',, 'crit''crit',, 'alert''alert',, 'emerg' # lint:ignore:trailing_comma'emerg' # lint:ignore:trailing_comma ]]
  • 30. Interface Segregation PrincipleInterface Segregation Principle ““Make fine-grained interfaces that areMake fine-grained interfaces that are client specific”client specific”
  • 31. DRY – Dont Repeat YourselfDRY – Dont Repeat Yourself ““...”...”
  • 32. DRYDRY modules grep -r "apache::vhost" . | wc -l❯ 75
  • 34. Profiles & Defined TypesProfiles & Defined Types create_resources(create_resources( 'apache::vhost''apache::vhost',, $vhosts$vhosts,, $vhost_defaults$vhost_defaults )) VSVS create_resources(create_resources( '::profile_symfony::vhost''::profile_symfony::vhost',, $instances$instances )) create_resources(create_resources( '::profile_drupal::vhost''::profile_drupal::vhost',, $instances$instances ))
  • 35. Dependency Inversion PrincipleDependency Inversion Principle ““Depend on abstractions, not onDepend on abstractions, not on concretions”concretions”
  • 36. Roles & ProfilesRoles & Profiles classclass roles::webserver {roles::webserver { include profiles::apacheinclude profiles::apache include profiles::mysqlinclude profiles::mysql include profiles::firewallinclude profiles::firewall }}
  • 37. Roles & ProfilesRoles & Profiles classclass role::webserver {role::webserver { include profiles::apacheinclude profiles::apache include profiles::phpinclude profiles::php include profiles::mysqlinclude profiles::mysql include profiles::firewallinclude profiles::firewall }}
  • 38. Defined TypesDefined Types definedefine profile_static_app::vhost(profile_static_app::vhost( StringString $public_name$public_name,, StringString $internal_name$internal_name,, StringString $package_name$package_name,, StringString $docroot$docroot == "/var/vhosts/"/var/vhosts/${name}${name}"",, BooleanBoolean $force_ssl$force_ssl == truetrue,, BooleanBoolean $letsencrypt$letsencrypt == truetrue,, BooleanBoolean $package_ensure$package_ensure == 'installed''installed',, Enum[Enum['apache''apache',,'haproxy''haproxy',, 'none''none']] $rproxy_type$rproxy_type == 'apache''apache',, StringString $rproxy_basicauth$rproxy_basicauth == 'ldap''ldap',, StringString $custom_fragment$custom_fragment == '''',, Array[String]Array[String] $internal_aliases$internal_aliases = []= [],, Array[String]Array[String] $public_aliases$public_aliases = []= [],, ) {) { ::profile_static_app::instance {::profile_static_app::instance {$public_name$public_name:: package_name =>package_name => $package_name$package_name,, ensure =>ensure => $package_ensure$package_ensure,, }} ::profile_apache::vhost{::profile_apache::vhost{ $public_name$public_name:: docroot =>docroot => $docroot$docroot,, internal_name =>internal_name => $internal_name$internal_name,, internal_aliases =>internal_aliases => $internal_aliases$internal_aliases,, public_name =>public_name => $public_name$public_name,, public_aliases =>public_aliases => $public_aliases$public_aliases,, force_ssl =>force_ssl => $force_ssl$force_ssl,, letsencrypt =>letsencrypt => $letsencrypt$letsencrypt,, rproxy_type =>rproxy_type => $rproxy_type$rproxy_type,, rproxy_basicauth =>rproxy_basicauth => $rproxy_basicauth$rproxy_basicauth,, custom_fragment =>custom_fragment => $custom_fragment$custom_fragment,, }} }}
  • 39. php::fpm::pool {php::fpm::pool { $name$name:: access_log =>access_log => $acces_log$acces_log,, listen =>listen => $fpm_listen$fpm_listen,, pm =>pm => $process_manager$process_manager,, pm_status_path =>pm_status_path => "/"/${name}${name}_status"_status",, }} profile_base::logrotate::file {profile_base::logrotate::file { ""${name}${name}-pool"-pool":: location => [location => [$acces_log$acces_log]],, }} ifif $create_cachetool_config$create_cachetool_config {{ ::profile_php::cachetool::config {::profile_php::cachetool::config { $name$name:: fpm_listen =>fpm_listen => $fpm_listen$fpm_listen,, location =>location => $cachetool_config_dir$cachetool_config_dir,, }} }} ifif $enable_alerting$enable_alerting {{ notify {notify { 'no alerting to see here''no alerting to see here': }: } }} ifif $enable_ship_logs$enable_ship_logs {{ ::profile_base::rsyslog::file {::profile_base::rsyslog::file { ""${name}${name}-pool"-pool":: location =>location => $acces_log$acces_log,, }} }} ifif $enable_ship_metrics$enable_ship_metrics {{ notify {notify { 'no metrics to see here''no metrics to see here': }: } }}
  • 40. ConclusionsConclusions VV Single Responsibility PrincipleSingle Responsibility Principle ½½ Open-Closed PrincipleOpen-Closed Principle ½½ Liskov Substitution PrincipleLiskov Substitution Principle ½½ Interface Segregation PrincipleInterface Segregation Principle ¾¾ Dependency Inversion PrincipleDependency Inversion Principle
  • 42. ContactContact Bram VogelaarBram Vogelaar +31 6 46 62 60 78+31 6 46 62 60 78 bram.vogelaar@inuits.eubram.vogelaar@inuits.eu @attachmentgenie@attachmentgenie Inuits BEInuits BE Essensteenweg 31Essensteenweg 31 2930 Brasschaat2930 Brasschaat BelgiumBelgium Inuits NLInuits NL Maashaven Zuidzijde 2Maashaven Zuidzijde 2 3081 AE Rotterdam3081 AE Rotterdam NetherlandsNetherlands